@mixin  cc {//垂直居中对齐
	display: flex;
	align-items: center;
	justify-content: center;
}
@mixin  vcc {//垂直居中对齐
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
}
@mixin ends{
	display: flex;
	justify-content: space-between;
	align-items: center;
}
@mixin v_ends{
	display: flex;
	flex-direction: column;
	justify-content: space-between;
	align-items: center;
}

@mixin w_box{
	width: 720upx;
	border-radius: 10upx;
	padding: 20upx;
	box-sizing: border-box;
	background-color: #fff;
	margin: auto;
}

@mixin bg1{
	width: 100vw;
	background-image: linear-gradient(180deg, #0ff 20%, #00ffff00);
	min-height: 750upx;
}
@mixin bg2{
	width: 750upx;
	min-height: 100vh;
	background-color: #e5e5e5;
}